After getting the movement all together and running, I found I actually had to loosen the cannon pinion - the opposite of the typical problem. Close examination showed it had clearly been tightened in the past, but too much. It was very hard to set. That's particularly bad because it's easy to break teeth on off if moving it requires too much force.
Illinois serial number 5128763 is a Bunn Special, Type III, Model 14, 16 size, 21 jewels, made about 1928.
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